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PS3: sg chaining support
Acked-by: Geoff Levand <geoffrey.levand@am.sony.com> Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
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parent
9b6eccfccb
commit
d1ed455e30
2 changed files with 5 additions and 4 deletions
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@ -616,17 +616,18 @@ static void ps3_unmap_single(struct device *_dev, dma_addr_t dma_addr,
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}
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}
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static int ps3_sb_map_sg(struct device *_dev, struct scatterlist *sg, int nents,
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enum dma_data_direction direction)
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static int ps3_sb_map_sg(struct device *_dev, struct scatterlist *sgl,
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int nents, enum dma_data_direction direction)
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{
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#if defined(CONFIG_PS3_DYNAMIC_DMA)
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BUG_ON("do");
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return -EPERM;
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#else
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struct ps3_system_bus_device *dev = ps3_dev_to_system_bus_dev(_dev);
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struct scatterlist *sg;
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int i;
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for (i = 0; i < nents; i++, sg++) {
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for_each_sg(sgl, sg, nents, i) {
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int result = ps3_dma_map(dev->d_region,
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page_to_phys(sg->page) + sg->offset, sg->length,
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&sg->dma_address, 0);
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@ -12,7 +12,7 @@
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#include <linux/cache.h>
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/* need struct page definitions */
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#include <linux/mm.h>
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#include <asm/scatterlist.h>
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#include <linux/scatterlist.h>
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#include <asm/io.h>
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#define DMA_ERROR_CODE (~(dma_addr_t)0x0)
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